Cataclysm classic could be great opportunity to resurrect Frostmourne realm
It could attract people who are playing wotlk classic and just refuse to move from Wotlk to Cata so their choice will be to stop playing at all or look for a new home with their favourite expansion in a private servers area. Sure there are already wotlk realms here but who wants to start playing on a server with progression finished long time ago... This is where Warmane could come. You could give classic people new wotlk realm and Im sure there would be also many willing players from other realms or even private servers who would come join it just for the "fresh" experience. What do you think?